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| author |   Ard Biesheuvel <ardb@kernel.org> | 2020-09-23 10:07:49 +0200 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2020-09-29 19:40:57 +0200 |
| commit | c9b51a2dbfe7f47643e133bf48e1bf28f1b85d2a (patch) | |
| tree | 89c10bc6f1d281ccfbbb93f00438f161e7ba8881 /drivers/firmware/efi/efi-pstore.c | |
| parent | efi: pstore: disentangle from deprecated efivars module (diff) | |
| download | linux-dev-c9b51a2dbfe7f47643e133bf48e1bf28f1b85d2a.tar.xz linux-dev-c9b51a2dbfe7f47643e133bf48e1bf28f1b85d2a.zip | |
efi: pstore: move workqueue handling out of efivars
The worker thread that gets kicked off to sync the state of the
EFI variable list is only used by the EFI pstore implementation,
and is defined in its source file. So let's move its scheduling
there as well. Since our efivar_init() scan will bail on duplicate
entries, there is no need to disable the workqueue like we did
before, so we can run it unconditionally.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'drivers/firmware/efi/efi-pstore.c')
| -rw-r--r-- | drivers/firmware/efi/efi-pstore.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c index 785f5e6b3a41..0ef086e43090 100644 --- a/drivers/firmware/efi/efi-pstore.c +++ b/drivers/firmware/efi/efi-pstore.c @@ -21,6 +21,7 @@ module_param_named(pstore_disable, efivars_pstore_disable, bool, 0644); EFI_VARIABLE_RUNTIME_ACCESS) static LIST_HEAD(efi_pstore_list); +static DECLARE_WORK(efivar_work, NULL); static int efi_pstore_open(struct pstore_info *psi) { @@ -267,8 +268,9 @@ static int efi_pstore_write(struct pstore_record *record) ret = efivar_entry_set_safe(efi_name, vendor, PSTORE_EFI_ATTRIBUTES, preemptible(), record->size, record->psi->buf); - if (record->reason == KMSG_DUMP_OOPS) - efivar_run_worker(); + if (record->reason == KMSG_DUMP_OOPS && try_module_get(THIS_MODULE)) + if (!schedule_work(&efivar_work)) + module_put(THIS_MODULE); return ret; }; @@ -412,6 +414,7 @@ static void efi_pstore_update_entries(struct work_struct *work) } kfree(entry); + module_put(THIS_MODULE); } static __init int efivars_pstore_init(void) |